fifty-fifty 各半的；对半的；平均
by one hundred percent 百分之百的；全部
a long hundred 一百多；一百二十
a few tenths of 十分之几；有几成
by twos and threes 三三两两
by ones or twos 三三两两；零零落落
in two twos 转眼；立即
at sixes and sevens 乱七八糟
one or two 少许；几个
twenty and twenty 三分之二，2/3
first of all 首先
second to none 首屈一指
last but one 倒数第二
a decade of 十个，10
a score of 二十，20
a dozen of 一打，12个
Thousands of people attended the meeting.
数千人参加了会议。
Ten to one she has forgotten it.
十有八九她把这件事给忘了。
